79104420 has 72 divisors (see below), whose sum is σ = 240674616. Its totient is φ = 21030912.

The previous prime is 79104419. The next prime is 79104439. The reversal of 79104420 is 2440197.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 675684 + 78428736 = 822^2 + 8856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117204 + ... + 117876.

It is an arithmetic number, because the mean of its divisors is an integer number (3342703).

Almost surely, 2^79104420 is an apocalyptic number.

It is an amenable number.

79104420 is an abundant number, since it is smaller than the sum of its proper divisors (161570196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79104420 is a wasteful number, since it uses less digits than its factorization.

79104420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 79104420 is about 8894.0665614779. The cubic root of 79104420 is about 429.2730099160.

It can be divided in two parts, 79104 and 420, that added together give a square (79524 = 282²).

The spelling of 79104420 in words is "seventy-nine million, one hundred four thousand, four hundred twenty".